These look great Cheng! I also am not an expert of this time period, but they look right to me.

I hope you will find this site of some value: http://ocw.mit.edu/ans7870/21f/21f.027/throwing_off_asia_01/gallery/index.htmIt contains hundreds of woodblock prints from the turn of the century depicting engagements between Japan and China, and Japan and Russia.Unfortunately (for the purpose of making Russian troops) the prints mainly feature scenes from the Japanese invasion of Korea, but all in all they are fascinating.